Clackamas Weather Forecast

    • 55
    • 73

    Rain

    • 48
    • 62

    Rain Showers

    • 48
    • 65

    Mostly Cloudy

    • 47
    • 68

    Partly Sunny

    • 49
    • 66

    Partly Sunny

    • 51
    • 69

    Slight Chance Rain

Today 24 Sep Inner Portland Metro

Mostly cloudy. Highs in the lower 70s. Light and variable Winds, becoming light this afternoon.

Tonight 24 Sep Inner Portland Metro

Rain. Lows in the mid 50s. Winds Light, rising to south 10 to 15 Mph after midnight. Chance of rain near 100 percent. Rainfall Amounts a quarter to a half of an inch.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Clackamas Temperature Statistics

September Temperature

Portland, Portland-Troutdale Airport (12.4 miles)

  • Lowest 16 September, 2026

    47.6 °F

  • Average September

    62.9 °F

  • Highest 9 September, 2026

    88.6 °F

Climate (2021–2026)

Portland, Portland-Troutdale Airport (12.4 miles)

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  • Average Low 2021–2026

    47.5 °F

  • Average 2021–2026

    56.2 °F

  • Average High 2021–2026

    65.2 °F
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